qemu

FORK: QEMU emulator
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dispatch.h (2160B)

      1 /*
      2  * Core Definitions for QAPI/QMP Dispatch
      3  *
      4  * Copyright IBM, Corp. 2011
      5  *
      6  * Authors:
      7  *  Anthony Liguori   <aliguori@us.ibm.com>
      8  *
      9  * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
     10  * See the COPYING.LIB file in the top-level directory.
     11  *
     12  */
     13 
     14 #ifndef QAPI_QMP_DISPATCH_H
     15 #define QAPI_QMP_DISPATCH_H
     16 
     17 #include "monitor/monitor.h"
     18 #include "qemu/queue.h"
     19 
     20 typedef void (QmpCommandFunc)(QDict *, QObject **, Error **);
     21 
     22 typedef enum QmpCommandOptions
     23 {
     24     QCO_NO_SUCCESS_RESP       =  (1U << 0),
     25     QCO_ALLOW_OOB             =  (1U << 1),
     26     QCO_ALLOW_PRECONFIG       =  (1U << 2),
     27     QCO_COROUTINE             =  (1U << 3),
     28 } QmpCommandOptions;
     29 
     30 typedef struct QmpCommand
     31 {
     32     const char *name;
     33     /* Runs in coroutine context if QCO_COROUTINE is set */
     34     QmpCommandFunc *fn;
     35     QmpCommandOptions options;
     36     unsigned special_features;
     37     QTAILQ_ENTRY(QmpCommand) node;
     38     bool enabled;
     39     const char *disable_reason;
     40 } QmpCommand;
     41 
     42 typedef QTAILQ_HEAD(QmpCommandList, QmpCommand) QmpCommandList;
     43 
     44 void qmp_register_command(QmpCommandList *cmds, const char *name,
     45                           QmpCommandFunc *fn, QmpCommandOptions options,
     46                           unsigned special_features);
     47 const QmpCommand *qmp_find_command(const QmpCommandList *cmds,
     48                                    const char *name);
     49 void qmp_disable_command(QmpCommandList *cmds, const char *name,
     50                          const char *err_msg);
     51 void qmp_enable_command(QmpCommandList *cmds, const char *name);
     52 
     53 bool qmp_command_is_enabled(const QmpCommand *cmd);
     54 bool qmp_command_available(const QmpCommand *cmd, Error **errp);
     55 const char *qmp_command_name(const QmpCommand *cmd);
     56 bool qmp_has_success_response(const QmpCommand *cmd);
     57 QDict *qmp_error_response(Error *err);
     58 QDict *qmp_dispatch(const QmpCommandList *cmds, QObject *request,
     59                     bool allow_oob, Monitor *cur_mon);
     60 bool qmp_is_oob(const QDict *dict);
     61 
     62 typedef void (*qmp_cmd_callback_fn)(const QmpCommand *cmd, void *opaque);
     63 
     64 void qmp_for_each_command(const QmpCommandList *cmds, qmp_cmd_callback_fn fn,
     65                           void *opaque);
     66 
     67 #endif